Water-quality monitoring of Canyon Lake, 2017-2018 Galen - - PowerPoint PPT Presentation

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Nov 16, 2022 232 likes •364 views

Water-quality monitoring of Canyon Lake, 2017-2018 Galen Hoogestraat Hydrologist, U.S. Geological Survey U.S. Department of the Interior U.S. Geological Survey Overview Who we are: USGS Dakota Water Science Center Canyon Lake

SLIDE 1

U.S. Department of the Interior U.S. Geological Survey

Water-quality monitoring of Canyon Lake, 2017-2018

Galen Hoogestraat

Hydrologist, U.S. Geological Survey

SLIDE 2

Overview

Who we are: USGS Dakota Water

Science Center

Canyon Lake background
Proposed monitoring project
Purpose
Public benefits
Approach
Funding

SLIDE 3

USGS Dakota Water Science Center

Department of Interior agency
Mission: collect high-quality hydrologic data

and conduct objective scientific investigations on the quantity, quality, and use of surface-water and groundwater resources of the Dakotas

Primary funding is from cooperative water

projects with state, county, and municipal- level agencies

https://sd.water.usgs.gov/

SLIDE 4

Canyon Lake is important for tourism and local recreation

SLIDE 5

Management of Canyon Lake draws huge interest from the community

SLIDE 6

Purpose of project:

Evaluate water quality and protect uses
Assist with water management (dredging)
Currently, limited bacteria data available

DENR Statewide Lakes Assessment data, from Paul Lorenzen, February 2017.

SLIDE 7

Limited data availability, cont.

Nutrients:

DENR Statewide Lakes Assessment data, from Paul Lorenzen, February 2017.

SLIDE 8

Current DENR WQM sites

SLIDE 9

Public benefits and outcomes

Do waterfowl significantly affect downstream

water quality?

Did the dredging have temporary or long term

benefits to water clarity?

Does Canyon Lake support beneficial use

criteria for immersion recreation?

SLIDE 10

Approach

5 sampling locations
Above, within, below Canyon Lake
16 sampling visits during 2017-18
Bi-monthly, and 4 storm runoff events
Water-quality parameters:
Temp, pH,

SC, DO, Turb

Nutrients
TSS
E. coli

SLIDE 11

Products

Data stored on publicly-available NWIS
Progress reports to WDWDD
Could include publication with future phase
Results will dictate this

SLIDE 12

Funding request

2 years, $40k total from WDWDD
Matched with $20k from USGS coop funds

SLIDE 13

Summary

Within scope of WDWDD involvement
Water management, water quality evaluation and

protection, maintaining use for recreation

Funding within WDWDD policies
Public benefit: both locals and visitors
Needed: fills gaps in state monitoring,